Perfect fit!
"My husband has a belly and every shirt he has caused a strain around the middle. He can't wear a belt, so often leaves his too-long XL shirt out with suspenders underneath. He loved the idea of a shirt designed to be untucked so we ordered two, but both were too small around the middle. Then we tried the same size in the relaxed mode. Perfect! The collars stay stiff and look fine under a jacket. They wash well, and they really improve his appearance. So he is already looking for short-sleeved shirts for our upcoming southern trip."